Battery production method and system

Abstract

Battery production method includes determining quantity of first battery cells based on current first production work order in process of producing products by production device in first process of battery production line; determining quantity of second battery cells; if greater than or equal to the quantity of the first battery cells, sending control instruction to first production device in the first process, and taking next first production work order as the current first production work order; determining quantity of unfinished battery packs on station device for current second production work order and sending the quantity of the unfinished battery packs to the station device in process of producing products by the station device in the second process of the battery production line; and when the quantity of the unfinished battery packs is zero, taking next second production work order as the current second production work order.

What is claimed is: 
     
         1 . A battery production method, applied to a battery production system, wherein the battery production system comprises an upper-level computer, a production device in a first process, a station device in a second process, and a manufacturing execution system, the method comprising:
 determining, by the upper-level computer, a quantity of first battery cells based on a current first production work order in a process of producing products by the production device in the first process of a battery production line, wherein the quantity of the first battery cells is a quantity of battery cells actually required for the current first production work order;   determining, by the upper-level computer, a quantity of second battery cells, wherein the quantity of the second battery cells is a quantity of battery cells determined to be qualified for the current first production work order;   in response to the quantity of the second battery cells being greater than or equal to the quantity of the first battery cells, sending, by the upper-level computer, a control instruction to a first production device in the first process, and taking a next first production work order as the current first production work order so as to complete switching of the first production work order, wherein the control instruction is used for the first production device to stop working;   determining, by the manufacturing execution system, a quantity of unfinished battery packs on the station device for a current second production work order and sending the quantity of the unfinished battery packs to the station device in a process of producing products by the station device in the second process of the battery production line; and   in response to the quantity of the unfinished battery packs being zero, taking, by the station device, a next second production work order as the current second production work order so as to complete switching of the second production work order.   
     
     
         2 . The method according to  claim 1 , wherein:
 the first production work order is a module production work order, and the second production work order is a battery pack production work order.   
     
     
         3 . The method according to  claim 2 , wherein:
 the first production device in the first process is a battery cell go-online device, a second production device in the first process is a battery cell code scanning device; and   the quantity of the first battery cells is a quantity of battery cells actually required to go online for the current first production work order, and the quantity of the second battery cells is a quantity of battery cells determined to be qualified to go online through battery cell code scanning for the current first production work order.   
     
     
         4 . The method according to  claim 3 , wherein determining, by the upper-level computer, the quantity of the first battery cells based on the current first production work order in the process of producing products by the production device in the first process of the battery production line, comprises:
 determining, by the upper-level computer, a quantity of third battery cells based on the current first production work order in the process of producing the products by the production device in the first process of the battery production line, wherein the quantity of the third battery cells is a quantity of battery cells theoretically required to go online for the current first production work order;   acquiring, by the upper-level computer, a quantity of fourth battery cells, wherein the quantity of the fourth battery cells is a quantity of unqualified battery cells in the process of producing the products by the production device in the first process for the current first production work order; and   determining, by the upper-level computer, a sum of the quantity of the third battery cells and the quantity of the fourth battery cells as the quantity of the first battery cells.   
     
     
         5 . The method according to  claim 4 , wherein determining, by the upper-level computer, the quantity of the third battery cells based on the current first production work order in the process of producing the products by the production device in the first process of the battery production line comprises:
 determining, by the upper-level computer, a product of a quantity of modules required in the current first production work order and a quantity of battery cells of a single module in the current first production work order as the quantity of the third battery cells in the process of producing the products by the production device in the first process of the battery production line.   
     
     
         6 . The method according to  claim 4 , wherein the production device in the first process comprises a battery cell taping device and a module pressurizing device, and acquiring, by the upper-level computer, the quantity of the fourth battery cells comprises:
 receiving, by the upper-level computer, a quantity of fifth battery cells sent by a programmable logic controller, wherein the quantity of the fifth battery cells is a quantity of unqualified battery cells in battery cell taping of the battery cell taping device for the current first production work order;   determining, by the upper-level computer, a quantity of sixth battery cells, wherein the quantity of the sixth battery cells is a quantity of battery cells contained in unqualified modules in a module pressurizing process of the module pressurizing device for the current first production work order; and   determining, by the upper-level computer, the quantity of the fifth battery cells or the quantity of the sixth battery cells as the quantity of the fourth battery cells.   
     
     
         7 . The method according to  claim 6 , further comprising:
 determining, by the upper-level computer, a sum of the quantity of the fifth battery cells and the quantity of the sixth battery cells as the quantity of the fourth battery cells.   
     
     
         8 . The method according to  claim 6 , wherein determining, by the upper-level computer, the quantity of the sixth battery cells comprises:
 determining, by the upper-level computer, a quantity of the unqualified modules in the module pressurizing process of the module pressurizing device for the current first production work order; and   determining, by the upper-level computer, a product of the quantity of the unqualified modules and a quantity of battery cells of a single module in the current first production work order as the quantity of the sixth battery cells.   
     
     
         9 . The method according to  claim 1 , wherein in response to the quantity of the second battery cells being greater than or equal to the quantity of the first battery cells, the sending, by the upper-level computer, the control instruction to the first production device in the first process, and taking the next first production work order as the current first production work order so as to complete switching of the first production work order comprises:
 in response to the quantity of the second battery cells being greater than or equal to the quantity of the first battery cells, sending, by the upper-level computer, the control instruction to the first production device in the first process, and sending a switching request for the first production work order to the manufacturing execution system;   acquiring, by the manufacturing execution system, the next first production work order based on the switching request for the first production work order, and sending the next first production work order to the upper-level computer; and   taking, by the upper-level computer, the next first production work order as the current first production work order so as to complete switching of the first production work order.   
     
     
         10 . The method according to  claim 1 , further comprising:
 after sending, by the upper-level computer when the quantity of the second battery cells is greater than or equal to the quantity of the first battery cells, the control instruction to the first production device in the first process, and taking the next first production work order as the current first production work order so as to complete switching of the first production work order, returning to perform the determining, by the upper-level computer, a quantity of first battery cells based on a current first production work order in a process of producing products by a production device in the first process of a battery production line.   
     
     
         11 . The method according to  claim 1 , wherein determining, by the manufacturing execution system, the quantity of unfinished battery packs on the station device for the current second production work order and sending the quantity of the unfinished battery packs to the station device in the process of producing products by the station device in the second process of the battery production line comprises:
 determining, by the manufacturing execution system, a quantity of finished battery packs on the station device for the current second production work order in the process of producing the products by the station device in the second process of the battery production line; and   determining, by the manufacturing execution system, the quantity of the unfinished battery packs based on a quantity of battery packs required to be finished by the station device for the current second production work order and the quantity of the finished battery packs, and sending the quantity of the unfinished battery packs to the station device.   
     
     
         12 . The method according to  claim 11 , wherein determining, by the manufacturing execution system, the quantity of finished battery packs on the station device for the current second production work order in the process of producing the products by the station device in the second process of the battery production line comprises:
 separately scanning, by the station device, codes of the battery packs entering and leaving a station to obtain a quantity of battery packs entering and leaving the station;   sending, by the station device, the quantity of the battery packs entering and leaving the station to the manufacturing execution system; and   determining, by the manufacturing execution system, the quantity of the battery packs entering and leaving the station as the quantity of the finished battery packs.   
     
     
         13 . The method according to  claim 1 , wherein taking, by the station device in response to the quantity of the unfinished battery packs being zero, the next second production work order as the current second production work order so as to complete switching of the second production work order comprises:
 in response to the quantity of the unfinished battery packs being zero, sending, by the station device, a switching request for the second production work order of the station device to the manufacturing execution system;   acquiring, by the manufacturing execution system, the next second production work order based on the switching request for the second production work order of the station device, and sending the next second production work order to the station device; and   taking, by the station device, the next second production work order as the current second production work order so as to complete switching of the second production work order.   
     
     
         14 . A battery production system, comprising an upper-level computer, a production device in a first process, a station device in a second process, and a manufacturing execution system, wherein:
 the upper-level computer is configured to:
 determine a quantity of first battery cells based on a current first production work order in a process of producing products by the production device in the first process of a battery production line, wherein the quantity of the first battery cells is a quantity of battery cells actually required for the current first production work order; 
 determine a quantity of second battery cells, wherein the quantity of the second battery cells is a quantity of battery cells determined to be qualified for the current first production work order; and 
 in response to the quantity of the second battery cells being greater than or equal to the quantity of the first battery cells, send a control instruction to a first production device in the first process, and take a next first production work order as the current first production work order so as to complete switching of the first production work order, wherein the control instruction is used for the first production device to stop working; 
   the manufacturing execution system is configured to determine a quantity of unfinished battery packs on the station device for a current second production work order and send the quantity of the unfinished battery packs to the station device in a process of producing products by the station device in the second process of the battery production line; and   the station device is configured to: in response to the quantity of the unfinished battery packs being zero, take a next second production work order as the current second production work order so as to complete switching of the second production work order.   
     
     
         15 . The system according to  claim 14 , wherein the first production work order is a module production work order, and the second production work order is a battery pack production work order. 
     
     
         16 . The system according to  claim 15 , wherein:
 the first production device in the first process is a battery cell go-online device, a second production device in the first process is a battery cell code scanning device; and   the quantity of the first battery cells is a quantity of battery cells actually required to go online for the current first production work order, and the quantity of the second battery cells is a quantity of battery cells determined to be qualified to go online through battery cell code scanning for the current first production work order.   
     
     
         17 . The system according to  claim 16 , wherein the upper-level computer is further configured to:
 determine a quantity of third battery cells based on the current first production work order in the process of producing the products by the production device in the first process of the battery production line, wherein the quantity of the third battery cells is a quantity of battery cells theoretically required to go online for the current first production work order;   acquire a quantity of fourth battery cells, wherein the quantity of the fourth battery cells is a quantity of unqualified battery cells in the process of producing the products by the production device in the first process for the current first production work order; and   determine a sum of the quantity of the third battery cells and the quantity of the fourth battery cells as the quantity of the first battery cells.   
     
     
         18 . The system according to  claim 17 , wherein the upper-level computer is further configured to:
 determine a product of a quantity of modules required in the current first production work order and a quantity of battery cells of a single module in the current first production work order as the quantity of the third battery cells in the process of producing the products by the production device in the first process of the battery production line.   
     
     
         19 . The system according to  claim 17 , wherein the production device in the first process comprises a battery cell taping device and a module pressurizing device, and the upper-level computer is further configured to:
 receive a quantity of fifth battery cells sent by a programmable logic controller, wherein the quantity of the fifth battery cells is a quantity of unqualified battery cells in battery cell taping of the battery cell taping device for the current first production work order;   determine a quantity of sixth battery cells, wherein the quantity of the sixth battery cells is a quantity of battery cells contained in unqualified modules in a module pressurizing process of the module pressurizing device for the current first production work order; and   determine the quantity of the fifth battery cells or the quantity of the sixth battery cells as the quantity of the fourth battery cells.   
     
     
         20 . The system according to  claim 19 , wherein the upper-level computer is further configured to:
 determine a sum of the quantity of the fifth battery cells and the quantity of the sixth battery cells as the quantity of the fourth battery cells.